Control device for valves



April 19, 1949. J BLANDlNG 2,467,461

CONTROL DEVICE FOR VALVES Filed Jan. 14, 1943 2 Sheets-Sheet l {gINVENTOR.

I & A-ljWNl-hlllli lllll JLELBZQIZJZIZ Apnl 19, 1949. J. E. BLANDINGCONTROL DEVICE FOR VALVES 2 Sheets-Sheet 2 Filed Jan. 14, 1943 JZZBZanaZ Patented Apr. 19, 1949 c'on'raonnnvronron VALVES EdwardBlending, New, London, Coma, as- .signor of one-half to Patrick B.McNamara,

" 1 Grater Cnn.

Application January 14, 1943, Serial No. 472,382

This invention ,relates to a control device for valves of internalcombustionengines of the type shown and described in my pendingapplication, Serial No. 457,861, filed September 10, 1942, now PatentNumber 2,352,682, granted July 4, 1944, the primary object of theinvention being to provide means for feeding the oil fuel to the engine.in such a way that the amount of oil entering the engine may beaccurately regulatedfor the eflicient operation of the engine.

Another important object of the invention is to provide a needle valvecontrol means designed for manually shutting the valve to regulate themovement of the valve, and consequently regulate the quantity of fueloil entering the engine, to insure the thorough mixing of the fuel oiland air to provide perfect combustionunder varying conditions of use.

Still another object of the invention is to provide exceptionally simplemeans for accomplishing adjustment of the valve, eleminating complicatedvalvecontrol mechanisms, which are frequently rendered inoperative.

With the foregoingand other objects in view which will appear as thedescription proceeds, the invention consists of certain noveldetails ofconstruction and combinations of parts hereinafter more fully describedand pointed out in the claims, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

Referring to the drawings,

Figure 1 is an elevational view illustrating engine cylinders, equippedwith the improved structure, forming the subject matter of the presentinvention.

Figure 2 is a plan view thereof.

Figure 3 is an end elevational view of the device.

Figure 4 is a sectional view taken on line 4-4 of Figure 2.

Figure 5 is a sectional view taken on line 55 of Figure 3.

Referring to the drawing in detail, the reference character 5 designatesthe engine cylinders of a four-cylinder engine. Each cylinder head isprovided with a fuel inlet port 6 which communicates with thecharge-forming device of the engine, through the valve chamber 1, andpassageway 8, the valve chamber I being provided with a valve seat atits base, to be engaged by the needle valve 9 which has one end thereof,extended into the passageway 8.

A flange indicated at 0 is formed on the needle valve, and provides astop for the lower end of 2Claims. (01.137-144) I 2 the coiled spring Hwhich has its upper end engaging the threaded member |2, whereby'thetension of the spring may be regulated. The member I2 is fitted inthreads formed on the wall of the valve chamber 1. I

An adjusting nut I3 is provided on the threaded extremity of the needlevalve 9, and provides a stop against which the rocker arm l4 engages;elevating the needle valve to admit a quantity of oil to the passageway8.

Therocker arm I, is pivotally mounted on the shaft l5 which in turn issupported by the'bracket l6 associated therewith, which bracket ismounted on the cylinder head. As shown, the rocker arms H of amulti-cylinder engine, are pivotally supported at a point nearer to oneendthan the other, leaving a substantially long portion of the rockerarm at one side of the shafts l5.

The reference character I! designates push rods which extend throughopenings in one end of the respective ends of the rocker arms associatedtherewith, there being provided a coiled spring I8 mounted on each pushrod, the spring having its upper end bearing against the push rod, whilethe lower end thereof rests on the adjustable collar l9 secured to thepush rod. A nut indicated at 20 is mounted on the threaded upper end ofeach push rod and is adapted to engage its rocker arm, adjusting thetension of the spring l8.

The regulating device, forming the essence of the present invention,includes a shaft 2| that extends over the cylinder block of the engine,the ends thereof being mounted in brackets 22 that are supported at theends of the cylinder blocks. Secured to the shaft 2|, are cams 23 thatare disposed directly under the rocker arms of the engine, the camsoperating to elevate the rocker arms, and consequently raise the needlevalves with which the rocker arms are connected, adjusting the initialpositions of the needle valves.

The bracket 22 at one end of the cylinder block, is substantially wideand is provided with an arouate shaped slot 24 disposed adjacent to thecurved upper edge thereof, the slot 24 being designed to accommodate thebolt 25 on which the indicator 26 is mounted. The indicator 26 is alsokeyed to the shaft 2| to move therewith.

A coiled spring indicated at 21 is mounted on the bolt 25 and bearsagainst the indicator 28, holding the indicator into close engagementwith the bracket 22 associated therewith. The outer end of the spring 21engages the head 28 when secured to theouter end of the bolt 25, thehead providing a finger piece, whereby the bolt 25. together with theindicator 26, may be swung 3 throughout the length of the slot 24 toadjust the shaft 2i, and consequently adjust the positions of the cams28 mounted thereon. Graduations are formed along the upper curved edgeof the wide bracket 22, which graduations cooperate with the indicatorin determining the degree of movement of the shaft 2|.

from the foregoing it will be seen that due to the construction shownand described, the at-.

tendant or operator of the ensine, may. by mtating the shaft :I, movethe various cam throughout the length of the cylinder blocksimultaneously, thereby insuring an accurateadjustment of all of theneedle valves controlling the flow of fuel oil, to the charge-formingdevices of the various cylinders.

In the operation of the engine, the-push rods I! move downwardly,rocking the arms II to elevate the needle valves connected therewith.when the cams have been adjusted to vary the initial flow of oil to thecylinders, it will be seen that the distance of opening of the needlevalves may be regulated.

with the structure shown by applicant, the valves may be adjusted sothat they will be maintained open a predetermined distance, at alltimes, or may be moved so that the initial positions of the needlevalves, will close the valve chambers to exclude the passage of oil intothe charge-forming devices.

What is claimed is:

1. A control device for valves internal combustion engines, comprising aplurality of .leedle valves, a pivoted rocker arm operatively connectedwith each needle valve, rocker arm adjusting means embodying ahorizontal shaft disposed under the rocker arms, cams secured to theshaft, each cam contacting with the lower surface of its respectiverocker arm, said cams restricting movement of the rocker arms. and saidshaft and eamsadaptedtoberotatedtherebytosimulta-'neouslyadjusttheoperatingpoaitionsoitheneedlevalvesregulatingthepalageoffuelthrough 2. 11 fuel control means for valves of internal combustionengines. computing a plurality of needle valves. a pivoted rocher armoperativelyconnectedwitheachofsaidneedlevalves,asupportforeaehrockermrockerarmadjmtingmeans embodying a horiaontal shaft, camsseucuredtosaidshafaeaohofaaidcamsbeingmountedunderitsrespeetiveroekerannincontact therewith at a point betweenthe support andvalve. saidcamsrestrictingthethrowofsaid rocker armsthereby to simultaneously adjust thepositionsoftheneedlevalveswhentheshaftis rotated. r s ating the passageof fuel through the valves.

JOSEPH EDWARD BLANDING.

REFERENCES CITED 1 The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

